Please note that JavaScript and style sheet are used in this website,
Due to unadaptability of the style sheet with the browser used in your computer, pages may not look as original.
Even in such a case, however, the contents can be used safely.
DDR II SRAM
- DDR II SRAM
- QDR™ II SRAM
Overview
This is a DDR (Double Data Rate) type SRAM that enables data to be read or written twice every clock. This product realizes a much higher transfer rate than conventional synchronous SRAM products. Adoption of BGA package is contributing to the reduction of area which carries SRAM.
DDRII SRAM is ideal for continuous read/write applications such as those used in the look-up tables of network switches and routers.
Features
Data I/O at 500MHz with an external input clock of 250MHz
Wide data valid window facilitating system design
Separate I/O type also available
Product lineup for both Commercial*1 and Industrial*2 operating ambient temperature range.
Note(*)
- TA=0 to +70°C
- TA= -40 to +85°C
Lineup
QDR II SRAM, DDR II SRAM,QDR II+ SRAM, DDR II+ SRAM, Lineup and Migration
- Please consult with our sales offices for support and development status of each product.
|
Note(*)
- µPD44164xx2A, µPD44164xx4A and µPD44164xx5A are upward compatible with µPD44164xx2, µPD44164xx4 and µPD44164xx5, respectively.
µPD44164xx2A, µPD44164xx4A and µPD44164xx5A are recommended for new designs. These products are planned to be consolidated to µPD44164xx2A, µPD44164xx4A and µPD44164xx5A. - 18M density products with 2M x9 organization are µPD44164092A, µPD44164094A and µPD44164095A.
Related Document
User's manual
439KB)
|
|